Home / 1,148,639.04-1,585,121.94-639,330.48

Finding the Fourth Proportional to 1,148,639.04, 1,585,121.94 and 639,330.48

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Solution

The fourth proportional to 1,148,639.04, 1,585,121.94 and 639,330.48 is: 882,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,639.04 : 1,585,121.94 = 639,330.48 : x
  2. Step 2: Convert to fraction form
    1,148,639.04/1,585,121.94 = 639,330.48/x
  3. Step 3: Cross multiply
    1,148,639.04x = 1,585,121.94 × 639,330.48
  4. Step 4: Simplify right side
    1,148,639.04x = 1,013,416,770,758.73
  5. Step 5: Solve for x
    x = 1,013,416,770,758.73/1,148,639.04
  6. Step 6: Final answer
    x = 882,276.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.